Non-minimal coupled warm inflation with quantum-corrected self-interacting inflaton potential

TL;DR

This paper explores a non-minimally coupled warm inflation model with quantum corrections, transforming potentials between frames, and constrains parameters using Planck 2018 data to match observational results.

Contribution

It introduces a detailed analysis of warm inflation with quantum-corrected potentials in a non-minimal coupling framework, constrained by recent observational data.

Findings

Allowed dissipation parameter range: 0.014 to 0.020

Model predictions align with Planck 2018 data at 2σ level

Strong regime of inflaton-radiation interaction analyzed

Abstract

In this work, we investigate the non-minimally coupled scenario in the context of warm inflation with quantum-corrected self-interacting potential. We transform the potential in the Jordan frame to the Einstein frame and consider a dissipation parameter of the form $\Gamma = C_{T}T$ with $C_T$ being a coupling parameter. We focus on the strong regime of which the interaction between inflaton and radiation fluid has been taken into account. We compute inflationary observables and constrain the parameters of our model using current Planck 2018 data. With the sizeable number of {\it e}-folds and proper choices of parameters, we discover that allowed values of $C_T$ lie in the range $0.014\lesssim C_{T}\lesssim 0.020$ in which the predictions are in good agreement with the latest Planck 2018 results at the $2\,\sigma$ confident level.